wx.request({
      url: 'https://coding.net/u/Kashaki/p/books/git/raw/test/requirment.txt',
      data: '',
      header: {},
      method: 'GET',
      dataType: 'json',
      responseType: 'text',
      success: function (res) {
        global_text = res.data + "正常返回"
      },
      fail: function (res) {
        global_text = res.data + "错误返回",
          console.log("失败返回" + res)
      },
      complete: function (res) {
        global_text = res.data + "完成返回"
      },
    })